1 files changed, 117 insertions, 0 deletions
diff --git a/src/lib/krb5/krb/copy_auth.c b/src/lib/krb5/krb/copy_auth.c
new file mode 100644
index 000000000000..06a06450cdb2
--- /dev/null
+++ b/src/lib/krb5/krb/copy_auth.c
@@ -0,0 +1,117 @@
+/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/* lib/krb5/krb/copy_auth.c */
+/*
+ * Copyright 1990 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
+ *
+ * Export of this software from the United States of America may
+ *   require a specific license from the United States Government.
+ *   It is the responsibility of any person or organization contemplating
+ *   export to obtain such a license before exporting.
+ *
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of M.I.T. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission.  Furthermore if you modify this software you must label
+ * your software as modified software and not distribute it in such a
+ * fashion that it might be confused with the original M.I.T. software.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose.  It is provided "as is" without express
+ * or implied warranty.
+ */
+/*
+ * Copyright (c) 2006-2008, Novell, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *       this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *   * The copyright holder's name is not used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "k5-int.h"
+#include "int-proto.h"
+
+/*
+ * Copy an authdata array, with fresh allocation.
+ */
+krb5_error_code KRB5_CALLCONV
+krb5_merge_authdata(krb5_context context,
+                    krb5_authdata *const *inauthdat1,
+                    krb5_authdata * const *inauthdat2,
+                    krb5_authdata ***outauthdat)
+{
+    krb5_error_code retval;
+    krb5_authdata ** tempauthdat;
+    register unsigned int nelems = 0, nelems2 = 0;
+
+    *outauthdat = NULL;
+    if (!inauthdat1 && !inauthdat2) {
+        *outauthdat = 0;
+        return 0;
+    }
+
+    if (inauthdat1)
+        while (inauthdat1[nelems]) nelems++;
+    if (inauthdat2)
+        while (inauthdat2[nelems2]) nelems2++;
+
+    /* one more for a null terminated list */
+    if (!(tempauthdat = (krb5_authdata **) calloc(nelems+nelems2+1,
+                                                  sizeof(*tempauthdat))))
+        return ENOMEM;
+
+    if (inauthdat1) {
+        for (nelems = 0; inauthdat1[nelems]; nelems++) {
+            retval = krb5int_copy_authdatum(context, inauthdat1[nelems],
+                                            &tempauthdat[nelems]);
+            if (retval) {
+                krb5_free_authdata(context, tempauthdat);
+                return retval;
+            }
+        }
+    }
+
+    if (inauthdat2) {
+        for (nelems2 = 0; inauthdat2[nelems2]; nelems2++) {
+            retval = krb5int_copy_authdatum(context, inauthdat2[nelems2],
+                                            &tempauthdat[nelems++]);
+            if (retval) {
+                krb5_free_authdata(context, tempauthdat);
+                return retval;
+            }
+        }
+    }
+
+    *outauthdat = tempauthdat;
+    return 0;
+}
+
+krb5_error_code KRB5_CALLCONV
+krb5_copy_authdata(krb5_context context,
+                   krb5_authdata *const *in_authdat, krb5_authdata ***out)
+{
+    return krb5_merge_authdata(context, in_authdat, NULL, out);
+}